Speaking from experience, a relationship with a younger women(mine was eighteen, I was also thirty-eight.) can be a wonderful thing. It will certainly keep you hopping as young women are still deciding who they are and are still very much exploring the world around them. after being with women my age I found in to be a refreshing relationship. As was mentioned previously to you, younger women seem to seek out an older man for their maturity, and
stability(in other words you are a safe person to explore the world with.).
A long lasting relationship, probably not, but worthwhile, definitely.

Good luck,
Barton.